# CACHATTO MailClient vs 事業シミュレーター

The clearest difference is update cadence: 事業シミュレーター at every 2 days against CACHATTO MailClient's every 6 weeks. CACHATTO MailClient's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CACHATTO MailClient ships an update every 6 weeks, 事業シミュレーター every 2 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CACHATTO MailClient | 事業シミュレーター |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 37 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [e-Jan Networks Co.](https://appshunter.io/developer/306277105) | [Hirokazu Kurokawa](https://appshunter.io/developer/463196366) |

## What reviewers say

### CACHATTO MailClient

[App page](https://appshunter.io/ios/app/cachatto-mailclient/id6443824789)

**Features:** macOS Compatibility

**In-app purchases:** none


### 事業シミュレーター

[App page](https://appshunter.io/ios/app/id6761741067)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CACHATTO MailClient free?

CACHATTO MailClient is free to download, with no in-app purchases.

### Is 事業シミュレーター free?

事業シミュレーター is free to download, with no in-app purchases.

### Do CACHATTO MailClient or 事業シミュレーター have ads?

Neither CACHATTO MailClient nor 事業シミュレーター shows ads.

### Which is updated more often, CACHATTO MailClient or 事業シミュレーター?

CACHATTO MailClient ships an update every 6 weeks, and 事業シミュレーター every 2 days. Most recently, CACHATTO MailClient was updated on October 27, 2026 and 事業シミュレーター on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*